Device for thickening the edge of shoe soles



Patented Jan. 30, 1934 DEVICE FOR THICKENING THE EDGE OF SHOE SOLES Ernest E. Doane and Augustus Bowers, Bridgewater, Mass.

Application September 15, 1931 Serial No. 562,950

4 Claims.

This invention has reference to a device for thickening the edge of a shoe sole, and has as its primary object the provision of means for thickening the edge of the sole subsequent to the attachment of the sole to the shoe and after the edge of the sole has been trimmed.

The above differs from the old method which now provides for the thickening of the edge of the sole before the sole is attached to the shoe, it being now customary to trim the sole after it is attached to the shoe, and therefore the ultimate edge of the sole does not exist before the sole is attached to the shoe.

A further object of the invention is to provide means for thickening the edge of the sole by subjecting the edge to a beating and rubbing process which has been found the most practical method of thickening the edge of the sole after the sole has been attached to the shoe.

A still further object of the invention is to provide a tool equipped with means for beating and rubbing the sole edge, together with additional means for determining the ultimate thickness of the sole.

Other objects and advantages of the invention will become apparent from a study of the following description, taken in connection with the accompanying drawing wherein:

Figure 1 is an elevational view of the device,

Figure 2 is an end elevational view of the hammer or beater.

Figure 3 is a transverse sectional view taken through the assembled structure and Figure 4 is a side elevational view of the assembled structure looking from the right to the left in Figure 1.

With reference more in detail to the drawing, it will be seen that the device comprises a beater or hammer member comprising a relatively short cylindrical body 5 provided with an axial opening 6 therethrough. Adjacent one end thereof the body 5 is provided with a circumferential flange 7 provided with a circular series of relatively spaced combined hammer and beater heads or projections 8 each having a rounded crown or operating face 9.

The flange '7 of the hammer device is located between a pair of circular gage plates 10 and 11, each of which has its peripheral edge beveled 5 as at 12.

The gage plate 10 is provided with an opening for accommodating the body 5, and has integral therewith a circular collar 13 that is locked to the body 5 against casual rotation through the medium of one or more set screws 14.

The gage plate 11 is provided with a centrally located opening 15 and has extending about said opening a collar 16 that fits within the proximate end of the bore 6 of body 5, (see Figure 3).

When assembled, the assembly is placed on a suitably driven shaft or the like as suggested in Figure l, the shaft being shown in broken lines and indicated generally by the reference character S. The shaft is rotated at any desired speed, and the edge of the shoe sole is presented to the faces 9 of the hammer and heater heads 8, and the continuous beating and rubbing to which the edge of the sole will be subjected, results in a thickening of the sole at its edge. The edge of the sole will of course be between the plates 10 and 11 and the space between the peripheral edges of the plates 10 and 11 will determine the ultimate thickness of the shoe sole. Fig. 3 shows that while the circular face of the inner gage plate 10 which lies in the plane of the inner face of the tool has a diameter slightly greater than that of the beater head crown circle, the diameter of the circular face of the outer gage plate 11 which lies in the plane of the outer face of the tool is not greater than that of said crown circle. This design of the outer gage plate eliminates rubbing and spoiling the upper or finished face of the projecting bottom material which is being thickened or plumped.

From the foregoing then it will be seen that we have devised a simple and inexpensive device for beating and rubbing the edge of a shoe sole for the purpose of thickening the same, subsequent to the attaching of the sole to the shoe.

Even though we have herein shown and described the preferred embodiment of the invention, it is to be understood that the same is susceptible of further changes, modifications and improvements coming within the scope of the appended claims.

Having thus described our invention, what we claim as new is:

1. A rotary device for thickening the edge of a shoe sole comprising a circular tool having a plurality of rigid substantially semi-circular projections on its periphery and spaced apart at their bases said projections being of a width corresponding to that of the thickened sole, and gage plates contacting the side faces of the tool and forming continuous peripheral walls opposite the spaces between said semi-circular projections for limiting the thickening operation on the sole.

2. A rotary device for thickening the edge of a shoe sole comprising a circular tool having a each beater head of said series is radial with respect to the circular body of the tool.

4. The invention according to claim 2 in which said outer gage plate has a body portion lying outside of the plane of the outer face of said tool of greater diameter than the greatest diameter of the tool and presentsan inner edge face sharply beveled outwardly from the circle defined by the rounded crowns of said series of beater heads.

ERNEST E. DOANE. AUGUSTUS BOWERS. 

